Top Definition
A fairly powerful, pistol like plasma weapon that uses energy cells as it's primary ammunition. It's found in Fallout New Vegas and is similar to the weapon obtainable in the original Fallout I and II (under the name "Plasma Pistol" in the first two games).
Fallout Addict: "Dude I just vaporized a Deathclaw with that plasma defender! WOO HOO!!!"

Bob: People still play fallout?
by thefalloutaddict July 21, 2011
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